How many AI and Machine Learning agencies are in California, United States?

33 are listed on Agency List in California, United States. 1 of them has been assessed on the Agency List Score as of September 2026.

Why are 32 AI and Machine Learning agencies listed here but not ranked?

32 of the 33 listed have not yet been assessed on the Agency List Score. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.

How is the ranking determined?

By Agency List Score, within the AI and Machine Learning in California, United States cohort of 1 assessed agency. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.

Top AI and Machine Learning Agencies in California, United States

Ranked · 1 assessed

Ordered by Agency List Score

#1 of 1 assessed

Hidden Brains

Verified

Custom web, mobile, and AI software development with pre-vetted engineering teams

AI Strategy and GovernanceComputer VisionGenerative AI Applications

View profile

Also in California · 32 not yet assessed

Listed agencies queued for assessment. Alphabetical.

AristekView profile →Aviana Global TechnologiesView profile →BlackbeltView profile →BrightappsllcView profile →Building BlocksView profile →Cheesecake LabsView profile →ConsultingWhizView profile →DatamonstersView profile →Executive IntelligenceView profile →Iffel InternationalView profile →IG Digital LabView profile →IndiumView profile →InfoObjectsView profile →IntelygenzView profile →ISS ArtView profile →ITRexView profile →LeewayHertzView profile →LevelShiftView profile →NeudesicView profile →ProvectusView profile →QuytechView profile →RedBlinkView profile →Sara TechnologiesView profile →ScalioView profile →

About this ranking

What this page ranks

This page ranks the 1 AI and Machine Learning agency in California, United States that has been assessed on the Agency List Score, out of 33 listed.

The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.

Cohorts and awards

Agencies are compared within a cohort — here, AI and Machine Learning in California, United States. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 1, so no award can be issued here.

The 32 AI and Machine Learning agencies not yet assessed are listed on this page but not ranked.

Read the full methodology

Paid placement

Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.

Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.

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Questions

How many AI and Machine Learning agencies are in California, United States?: 33 are listed on Agency List in California, United States. 1 of them has been assessed on the Agency List Score as of September 2026.
Which AI and Machine Learning agency in California, United States is ranked highest?: Hidden Brains, with an Agency List Score of 94.0, ranks #1 of 1 assessed agency in AI and Machine Learning in California, United States.
Why are 32 AI and Machine Learning agencies listed here but not ranked?: 32 of the 33 listed have not yet been assessed on the Agency List Score. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
How is the ranking determined?: By Agency List Score, within the AI and Machine Learning in California, United States cohort of 1 assessed agency. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.